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Trapping method, extraction method and determination method for carbonyl compounds and tobacco-specific nitrosamines in mainstream cigarette smoke

A technology for mainstream smoke and carbonyl compounds of cigarettes, applied in measurement devices, instruments, scientific instruments, etc., can solve the problem that the filter cannot effectively capture carbonyl compounds at the same time, so as to reduce the harm to the environment and the health of testing personnel, Reduce costs and eliminate the effect of large dead volumes

Active Publication Date: 2017-10-20
CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In mainstream smoke, carbonyl compounds mainly exist in the gas phase, while tobacco-specific nitrosamines are mainly distributed in the particle phase. Therefore, traditional filters cannot effectively capture carbonyl compounds and carbonyl compounds in mainstream cigarette smoke at the same time. Tobacco specific nitrosamines

Method used

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  • Trapping method, extraction method and determination method for carbonyl compounds and tobacco-specific nitrosamines in mainstream cigarette smoke
  • Trapping method, extraction method and determination method for carbonyl compounds and tobacco-specific nitrosamines in mainstream cigarette smoke
  • Trapping method, extraction method and determination method for carbonyl compounds and tobacco-specific nitrosamines in mainstream cigarette smoke

Examples

Experimental program
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Embodiment 1

[0069] The method for trapping carbonyl compounds and tobacco-specific nitrosamines in cigarette mainstream smoke in this embodiment comprises the following steps:

[0070] 1) Prepare a pretreatment solution with a 0.20 mol / L hydrochloric acid aqueous solution and absolute ethanol at a volume ratio of 1:1;

[0071] 2) Accurately pipette 2mL of the pretreatment solution and evenly add it to the Cambridge filter, and continue to balance for two hours to obtain the pretreatment filter;

[0072] 3) Take the standard filter as the auxiliary filter, put a pretreatment filter and an auxiliary filter in the filter holder, and set the pretreatment filter at the end of the filter holder where the flue gas enters , the auxiliary filter is set at the end of the filter holder where the smoke flows out, and they all face up, so that the mainstream smoke of the cigarette passes through the pretreatment filter and the auxiliary filter in sequence, and the carbonyl compounds and tobacco in the...

Embodiment 2

[0125] Another sample B was measured according to the method of Example 1, and the results are shown in Table 10.

[0126] Table 10 Detection results of carbonyl compounds and tobacco-specific nitrosamines in mainstream smoke of sample B

[0127] compound

Embodiment 3

[0129] Another sample C was measured according to the method of Example 1, and the results are shown in Table 11.

[0130] Table 11 Detection results of carbonyl compounds and specific nitrosamines in sample C mainstream smoke

[0131] compound

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Abstract

The invention relates to a trapping method, an extraction method and a determination method for carbonyl compounds and tobacco-specific nitrosamines in mainstream cigarette smoke and belongs to the technical field of physical and chemical inspection of mainstream cigarette smoke. The trapping method for the carbonyl compounds and tobacco-specific nitrosamines in the mainstream cigarette smoke disclosed by the invention comprises the following steps: preparing a pretreatment solution from 0.20mol / L hydrochloric acid and absolute ethyl alcohol according to a volume ratio of 1:1; balancing the pretreatment solution on a standard filter for 2 hours so as to obtain a pretreated filter; and taking the standard filter as an auxiliary filter, enabling the mainstream cigarette smoke to sequentially pass through the pretreated filter and the auxiliary filter, and trapping the carbonyl compounds and tobacco-specific nitrosamines in the mainstream cigarette smoke. According to the trapping method disclosed by the invention, twelve harmful components in the carbonyl compounds and tobacco-specific nitrosamines of the mainstream cigarette smoke can be simultaneously trapped due to one-time smoking, so that the working efficiency is doubled. Moreover, the influence that large dead volume is caused during solution trapping can be eliminated.

Description

technical field [0001] The invention relates to a method for capturing, extracting and measuring carbonyl compounds and tobacco-specific nitrosamines in mainstream smoke of cigarettes, and belongs to the technical field of physical and chemical testing of mainstream smoke of cigarettes. Background technique [0002] Carbonyl compounds are an important class of harmful components in mainstream cigarette smoke. They are included in the Canadian government's list of 46 harmful components and the list of controlled components recommended by the WHO "Tobacco Product Regulation Research Group", thus accurately determining the volatile carbonyl in cigarette smoke. Compounds are of great significance for the evaluation of the hazards of cigarettes. At present, the detection of carbonyl compounds in mainstream cigarette smoke in China generally adopts the high performance liquid chromatography method stipulated in "YC / T 254-2008". Phase chromatographic UV detectors have limited sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 张洪非高川川姜兴益朱文静史训瑶巴金莎楼小华朱风鹏李翔宇庞永强胡少东罗彦波赵银杰
Owner CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
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